Redirects for Joomla Experimental URL Routing

Although I found a posted solution a few months ago for URLs with article ID only (https://www.mysite.com/category/1111-article), I had several different scenarios that were going to 404’s.  Those were:

Links with category ID

https://www.mysite.com/11-category/article

https://www.mysite.com/11-category/1111-article

Links with regular, non ID numbers in alias

http://www.mysite.com/the-best-10-things

http://www.mysite.com/11-category/the-best-10-things

http://www.mysite.com/11-category/1111-the-best-10-things

Below is the condensed code that accounts for all vaiants. 

RewriteCond %{REQUEST_URI} (.*)\/(\d{1,}-|)(.*)\/(\d{1,}-|)(.*)
RewriteRule ^(.*)(\/)(.*) %1/%3/%5 [L,QSA,R=301]

You can test specific URLs against it using https://htaccess.mwl.be?share=27edebe3-4ed5-5519-b093-2646c2f5689e

Below are the rules broken out separately in case anyone needs to customize.   When I get some more time, I will write explanations.  If you find a link that does not properly redirect, please add it to the comments as I want to improve it.

### with CATEGORY ID and ARTICLE ID ###
RewriteCond %{REQUEST_URI} (.*)(\/)(\d{1,})(-)(.*)(\/)(\d{1,})(-)(.*)
RewriteRule ^(.*)(\/)(.*) %1/%5/%9 [L,QSA,R=301]

### with CATEGORY ID only ###
RewriteCond %{REQUEST_URI} (.*)(\/)(\d{1,})(-)(.*)(\/)(.*)
RewriteRule ^(.*)(\/)(.*)(\/)(.*) %1/%5/%7 [L,QSA,R=301]

### ARTICLE ID only ###
RewriteCond %{REQUEST_URI} ^(.*)/(\d+)-([^/]+)$
RewriteRule ^ %1/%3 [L,QSA,R=301]

Also, for working on code like this, online testers are invaluable since there is a lot of trial and error.

Regex Tester

.htaccess Test

Thanks to Andreas Karr for taking my rules and consolidating into one awesome rule.  This is another good reference for regex.