Need Help for Adding support for cuda and opencl

[Black]

Hello everyone,
I am a old user of kdevelop , and now i am writing some programs using
cuda c or opencl, they are based on c or c++. I had changed the cpp.xml
and the c.xml located at "/usr/share/kde4/apps/katepart/syntax/" to
highlight the syntax in *.cu, *cuh and *.cl. Howerver, the kdevelop
still doesn't parse the these file.
Is there some codes should be changed in the kdevelp project? Where
could i begin with ? I spent a whole night but i doesn't get the location.
Thanks for your help.