<IfModule mod_rewrite.c>
   RewriteEngine on
   RewriteOptions MaxRedirects=1
   RewriteBase /book/
   RewriteCond %{REQUEST_FILENAME} !-f
   RewriteCond %{REQUEST_FILENAME} !-d
   RewriteCond %{REQUEST_FILENAME} !-l
   
   RewriteRule ^search/keyword/(.*+)$ index.php/index/search/?key=$1 [L]

   RewriteRule ^([a-zA-Z0-9]+)/p/([0-9_-]+)$ index.php/index/cls/classname/$1/p/$2 [L]
	
   RewriteRule ^([a-zA-Z0-9]+)/$ index.php/index/cls/classname/$1/ [L]
   RewriteRule ^([a-zA-Z0-9]+)$ index.php/index/cls/classname/$1/ [L]
   
   RewriteRule ^book/([a-zA-Z0-9]+)/([a-zA-Z0-9_-]+)/$ index.php/index/look/name/$1/id/$2 [L]
   RewriteRule ^book/([a-zA-Z0-9]+)/([a-zA-Z0-9_-]+)$ index.php/index/look/name/$1/id/$2 [L]
   
   RewriteRule ^book/([a-zA-Z0-9]+)/$ index.php/index/look/name/$1 [L]
   RewriteRule ^book/([a-zA-Z0-9]+)$ index.php/index/look/name/$1 [L]
   
</IfModule>