Greasy Fork

Help with scripting

I would like to write a script that redirects all wikia links to the monobook theme, so 'example.wikia.com/wiki/Example' becomes 'example.wikia.com/wiki/Example?useskin=monobook'. I couldn't understand the regex rules, can you please help?
On a side note, is it possible to implement a system using asterisks as wildcards (so in this case 'example.wikia.com/wiki/*' to 'example.wikia.com/wiki/*?useskin=monobook')? I see this system being used in a lot of places (tampermonkey and stylish both use them). It would make beginners write new rules much more easily.

The asterisks system is rather limited and to be frank useless unless I implement background code to allow behavior similar to what already exists in RegEx. Not really worth the effort.

RegEx101 is a good site with a quick reference section. It's pretty easy to get the basics down.

The rules expressions:

Expression 1:
We need to first create an expression that makes sure "?useskin=monobook" is already added, if it is clean it. We do this to avoid infinite redirection because keep on adding "?useskin=monobook" at the end.

Search: \?useskin=monobook
Replace: nothing (empty string)

Expression 2:
Second expression we just append "?useskin=monobook" a the end.

Search: (.+)
Replace: $1?useskin=monobook


The rule which you can import in LA3. Just copy it and use the "Paste Rules" button.

{"id":"L1477055121855","name":"Wikia: Use Monobook Skin","URLs":"@.wikia.com/","description":"Forces the use of monobook skin for wikia pages","sampleURL":"http://superhot.wikia.com/wiki/SUPERHOT_Wiki","nthNode":"0","type":3,"selectors":"a","regexes":[{"search":"\\?useskin=monobook"},{"search":"(.+)","replace":"$1?useskin=monobook"}],"enabled":true,"timestamp":1477055405815}

Screenshot of the actual rule.

I see, I think I'll look up a bit more about regex for future purposes. Thanks!