apache - redirecting main page to current date

Problem:
Automatic redirection of main page request to current year and month.
Automatic fixing of broken date links (YEARMONTH to YEAR/MONTH/)


Solution:
Use mod_rewrite magic :D

RewriteEngine on
RewriteRule ^/([0-9]{4})([0-9]{2})$ http://%{HTTP_HOST}/$1/$2/ [R,L]
RewriteRule ^/$ http://%{HTTP_HOST}/%{TIME_YEAR}/%{TIME_MON}/ [R,L]

(1.) enables RewriteEngine
(2.) matches http://host.domain/dddddd and transforms it into http://host.domain/dddd/dd
where $1 is the first match - a group of four digits ([0-9]{4}) and $2 is the second match (group of 2 digits)
(3.) redirects main page (http://host.domain/) to http://host.domain/month/year/