Configurable domain in .htaccess

[superprg]

Hi All

I am trying to use 301 redirect by using

RedirectPermanent

 

So, the old file I had

typinggame.asp should go to www.domain.com/index.php?product_info=4

wargame.asp should go to

www.domain.com/index.php?product_info=6

 

So I have this code in .htaccess file for this

RedirectPermanent /typinggame.asp www.domain.com/index.php?product_info=4

RedirectPermanent /wargame.asp www.domain.com/index.php?product_info=6

which works perfectly fine

I have in this way 40 products

What I wanted to ask is

Can I in the .htaccess file set the domain as variable so that if i change my server again someday I dont have to change the server value at each line but just the configured variable value

Also, is there any short way to achieve the same?

Thanks