SCGI for specific extensions

[David Smith <dsmith03@xxxxxxxxx>]

I created a custom SCGI process and I'd like to only pass requests with a .gsp or .gspx extension to be handled by the process..
The problem I'm having is that it I've not been able to get specific request sent to the scgi process by extension, but rather I've only been able to tell it to process everything and to exclude certain extension and folder.  This doesn't work well, because I don't know everything I will need to exclude.  

I just want .gsp and .gspx files to be handled via SCGI.  Any suggestions ?

My lighttpd config is here, and it works:  http://code.google.com/p/easygsp/wiki/InstallEasyGSP

         LoadModule scgi_module modules/mod_scgi.so
         SCGIMount / 127.0.0.1:4444
 
         <locationmatch (\.js|\.gif|\.jpg|\.ico|\.css|\.swf|\.png|\.tiff|\.jpeg|\.json|\.zip|\.tar\.gz|\.mp3|\.doc)+$>
             SCGIHandler Off
         </locationmatch>
         <locationmatch "/images|css|js|docs/">
             SCGIHandler Off
         </locationmatch>

         <IfModule dir_module>
             DirectoryIndex index.gspx index.gsp index.html
         </IfModule>

         # point to $EASYGSP_HOME/webapps
         DocumentRoot "/easygsp/webapps"

         # point to $EASYGSP_HOME/webapps         
         <Directory "/easygsp/webapps">
           Options FollowSymLinks

           AllowOverride None

           Order allow,deny
           Allow from all
         </Directory>