[url_normalize] at tagSwap.net: Open Source Lasso Code

[url_normalize]

Description

Link: [url_normalize]

Author: Jason Huck

Category: String

Version: 8.5.x

License: Public Domain

Posted: Sep. 22, 2008

Updated: Jan. 01, 0001

More by this author...

This tag can be used to convert a relative URL into an absolute one. Accepts two parameters: a base URL to compare against (representing the path to the file that calls the relative URL), and a relative URL to convert.

Parameters

-url	string, required	The relative URL you wish to convert to absolute.
-base	string, required	Path to location from which the original relative URL is called.

Sample Usage

url_normalize(
	-url='../../../foo.jpg',
	-base='/path/to/thing/that/calls/foo/'
);

-> '/path/to/thing/foo.jpg'

Source Code

Click the "Download" button below to retrieve a copy of this tag, including the complete documentation and sample usage shown on this page. Place the downloaded ".inc" file in your LassoStartup folder, restart Lasso, and you can begin using this tag immediately.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

define_tag(
	'normalize',
	-namespace='url_',
	-req='url', -copy,
	-req='base', -copy,
	-priority='replace',
	-encodenone,
	-description='Given a base URL, converts the given relative URL to absolute.'
);	
	// URLs beginning with / or http do not need to be converted
	(#url->beginswith('http://') || #url->beginswith('/')) ? return(#url);
	
	!#base->endswith('/') ? #base->append('/');
	
	if(#url->beginswith('../'));
		// count the number of paths to remove
		local('dirsToRemove') = #url->split('../')->size - 1;
		
		#base->removetrailing('/');
		
		loop(#dirsToRemove);
			#base->removetrailing('/' + #base->split('/')->last);
			#url->removeleading('../');
		/loop;
	
		#base->append('/');
	
		return(#base + #url);
		
	else(#url == '.');
		return(#base);
	
	else(#url->beginswith('./'));
		return(#base + #url->removeleading('./')&);
	
	else;
		return(#base + #url);
	/if;
/define_tag;

Related Tags

Comments

none