RewriteEngine on
RewriteCond $1 !^(index\.php|images|css|robots\.txt)
RewriteRule ^(.*)$ index.php?p=$1 [L]
I use this to forward all routing to index.php, If I would to rewrite the following:
http://localhost/folder/method/value
And that would be
http://localhost/folder/method/?f=value
How do I make it work?
See the mod rewrite tage wiki and example 6.
For your specific case you could just prepend a rule like
RewriteRule ^(\w+)/(\w+)/(\w+)$ $1/$2/?f=$3 [L]
See also Serverfault: Everything You Ever Wanted to Know about Mod_Rewrite Rules but Were Afraid to Ask? to learn about rule ordering.