Help need [refactoring] .htaccess code

#set link auto on
Options +FollowSymLinks -MultiViews
DirectoryIndex index.php
DirectoryIndex index.html
Options -Indexes

RewriteEngine on
RewriteBase /
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /index\.php\ HTTP/
RewriteRule ^index\.php$ http : // www . yourdomain . com/ [R=301,L]
RewriteCond %{HTTP_HOST} !^(.*)\.yourdomain\.com$ [NC]
RewriteRule ^(.*)$ http : // www . yourdomain . com/$1 [R=301,L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !(\.[a-zA-Z0-9]{1,5}|/)$
RewriteRule (.*)$ http : // www . yourdomain . com/$1/ [R=301,L]


RewriteRule ^about-us/$ about-us.php [L]
RewriteRule ^customer-services/$ customer-services.php [L]
RewriteRule ^contact-us/$ contact-us.php [L]
RewriteRule ^terms-conditions/$ terms-conditions.php [L]
RewriteRule ^privacy-policy/$ privacy-policy.php [L]
RewriteRule ^brands/$ brands.php [L]

RewriteRule ^products/$ products.php [L]
RewriteRule ^shopping-cart/$ cart.php [L]

RewriteRule ^new-products/$ products.php [L]
RewriteRule ^popular-products/$ popular-products.php [L]
RewriteRule ^best-deals/$ best-deals.php [L]
RewriteRule ^product-search/$ product-search.php [L]
RewriteRule ^product-advanced-search/$ asearch.php [L]
RewriteRule ^keyword-search/$ keyword-search.php [L]
RewriteRule ^advanced-search/$ advancedsearch.php [L]

RewriteRule ^register/$ register.php [L]
RewriteRule ^login/$ login.php [L]
RewriteRule ^reseller/$ reseller.php [L]
RewriteRule ^logout/$ logout.php [L]
RewriteRule ^forgot-password/$ forgot-password.php [L]

RewriteRule ^my-account/$ myaccount.php [L]
RewriteRule ^my-profile/$ myprofile.php [L]
RewriteRule ^change-password/$ changepassword.php [L]
RewriteRule ^wishlist/$ wishlist.php [L]
RewriteRule ^pro-order/$ pro-order.php [L]
RewriteRule ^col-order/$ col-order.php [L]
RewriteRule ^can-order/$ can-order.php [L]
RewriteRule ^dis-order/$ dis-order.php [L]

RewriteRule ^imageviewer/([^/]*)\/$ imageviewer.php?pid=$1 [L]

RewriteRule ^products/([^/]*)/([^/]*)\/$ main-category.php?ml_id=$1&ml_name=$2 [L]

RewriteRule ^products/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)\/$ main-category.php?ml_id=$1&ml_name=$2&sortby=$3&ordby=$4&page=$5 [L]

RewriteRule ^products/([^/]*)/([^/]*)/([^/]*)/([^/]*)\/$ sub-category.php?ml_id=$1&ml_name=$2&sl_id=$3&sl_name=$4 [L]

RewriteRule ^products/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)\/$ sub-category.php?ml_id=$1&ml_name=$2&sl_id=$3&sl_name=$4&sortby=$5&ordby=$6&page=$7 [L]

RewriteRule ^products/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)\/$ sub-sub-category.php?ml_id=$1&ml_name=$2&sl_id=$3&sl_name=$4&ssl_id=$5&ssl_name=$6 [L]

RewriteRule ^products/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)\/$ sub-sub-category.php?ml_id=$1&ml_name=$2&sl_id=$3&sl_name=$4&ssl_id=$5&ssl_name=$6&sortby=$7&ordby=$8&page=$9 [L]

RewriteRule ^products/([^/]*)/([^/]*)/([^/]*)\/$ products.php?sortby=$1&ordby=$2&page=$3 [L]

RewriteRule ^new-products/([^/]*)/([^/]*)/([^/]*)\/$ products.php?sortby=$1&ordby=$2&page=$3 [L]
RewriteRule ^popular-products/([^/]*)/([^/]*)/([^/]*)\/$ popular-products.php?sortby=$1&ordby=$2&page=$3 [L]
RewriteRule ^best-deals/([^/]*)/([^/]*)/([^/]*)\/$ best-deals.php?sortby=$1&ordby=$2&page=$3 [L]


RewriteRule ^product-search/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)\/$ product-search.php?sea_mlid=$1&sea_slid=$2&sea_sslid=$3&sea_brandid=$4&sea_min_price=$5&sea_max_price=$6 [L]

RewriteRule ^product-search/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)\/$ product-search.php?sea_mlid=$1&sea_slid=$2&sea_sslid=$3&sea_brandid=$4&sea_min_price=$5&sea_max_price=$6&sortby=$7&ordby=$8&page=$9 [L]

RewriteRule ^keyword-search/([^/]*)/([^/]*)/([^/]*)/([^/]*)\/$ keyword-search.php?txtsearch=$1&sortby=$2&ordby=$3&page=$4 [L]

RewriteRule ^wishlist/([^/]*)/([^/]*)\/$ wishlist.php?action=$1&page=$2 [L]

#RewriteRule ^product-advanced-search/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)/([^/]*)\/$ asearch.php?smlid=$1&sslid=$2&sgenid=$3&sbrandid=$4&sstyid=$5&sheelid=$6&smatid=$7&searchprice=$8&sortby=$9&ordby=$10&page=$11 [L]

RewriteRule ^product-details/([^/]*)/([^/]*)\/$ main-product.php?prod_id=$1&prod_name=$2 [L]
RewriteRule ^login/([^/]*)\/$ login.php?msg=$1 [L]
RewriteRule ^reseller/([^/]*)\/$ reseller.php?res_msg=$1 [L]
RewriteRule ^brands/([^/]*)/([^/]*)\/$ brands.php?baction=$1&page=$2 [L]

RewriteRule ^processing/([^/]*)/([^/]*)\/$ pro-order.php?porder=$1&page=$2 [L]
RewriteRule ^collected/([^/]*)/([^/]*)\/$ col-order.php?corder=$1&page=$2 [L]
RewriteRule ^dispatched/([^/]*)/([^/]*)\/$ dis-order.php?dorder=$1&page=$2 [L]
RewriteRule ^cancelled/([^/]*)/([^/]*)\/$ can-order.php?canorder=$1&page=$2 [L]

RewriteRule ^order-details/([^/]*)\/$ orderview.php?ord_id=$1 [L]

#set link start http:// www . yourdomain . com