Skip a directory with htaccess

RewriteCond %{HTTP_HOST} ^(www.)?example\.com$ [NC]
RewriteRule ^(.+)/$ http://%{HTTP_HOST}/$1 [R=301,L]

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So i have this in my htaccess file to take care of the trailing slash problem . It redirects you every time you add a trailing slash on a url.

The issue here is the fact there is one directory and all its subdirectoies where it needs the trailing slash or it breaks. How do I add a exception for a directory like http://www.example.com/com/ and http:///www.example.com/com/sub/?XXXXX to this rule..

the page thats breaking because of the rewrite looks like this

 http:///www.example.com/com/sub/?view=XXXX&layout=XXXXX

thanks